feat(sync): full code sync from release

backend/internal/service/data_management_service_test.go

@@ -0,0 +1,37 @@
+package service
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDataManagementService_GetAgentHealth_Deprecated(t *testing.T) {
+	t.Parallel()
+
+	socketPath := filepath.Join(t.TempDir(), "unused.sock")
+	svc := NewDataManagementServiceWithOptions(socketPath, 0)
+	health := svc.GetAgentHealth(context.Background())
+
+	require.False(t, health.Enabled)
+	require.Equal(t, DataManagementDeprecatedReason, health.Reason)
+	require.Equal(t, socketPath, health.SocketPath)
+	require.Nil(t, health.Agent)
+}
+
+func TestDataManagementService_EnsureAgentEnabled_Deprecated(t *testing.T) {
+	t.Parallel()
+
+	socketPath := filepath.Join(t.TempDir(), "unused.sock")
+	svc := NewDataManagementServiceWithOptions(socketPath, 100)
+	err := svc.EnsureAgentEnabled(context.Background())
+	require.Error(t, err)
+
+	statusCode, status := infraerrors.ToHTTP(err)
+	require.Equal(t, 503, statusCode)
+	require.Equal(t, DataManagementDeprecatedReason, status.Reason)
+	require.Equal(t, socketPath, status.Metadata["socket_path"])
+}